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<div id="overview"><a href="../../../../../apidocs/com/totsp/gwittir/service/LogServiceServlet.html">View Javadoc</a></div><pre>

<a name="1" href="#1">1</a>   <em class="jxr_comment">/*</em>
<a name="2" href="#2">2</a>   <em class="jxr_comment"> * LogServiceServlet.java</em>
<a name="3" href="#3">3</a>   <em class="jxr_comment"> *</em>
<a name="4" href="#4">4</a>   <em class="jxr_comment"> * Created on October 5, 2007, 11:30 AM</em>
<a name="5" href="#5">5</a>   <em class="jxr_comment"> *</em>
<a name="6" href="#6">6</a>   <em class="jxr_comment"> * To change this template, choose Tools | Template Manager</em>
<a name="7" href="#7">7</a>   <em class="jxr_comment"> * and open the template in the editor.</em>
<a name="8" href="#8">8</a>   <em class="jxr_comment"> */</em>
<a name="9" href="#9">9</a>   
<a name="10" href="#10">10</a>  <strong class="jxr_keyword">package</strong> com.totsp.gwittir.service;
<a name="11" href="#11">11</a>  
<a name="12" href="#12">12</a>  <strong class="jxr_keyword">import</strong> com.google.gwt.user.server.rpc.RemoteServiceServlet;
<a name="13" href="#13">13</a>  <strong class="jxr_keyword">import</strong> com.totsp.gwittir.client.log.remote.LogService;
<a name="14" href="#14">14</a>  <strong class="jxr_keyword">import</strong> java.io.BufferedReader;
<a name="15" href="#15">15</a>  <strong class="jxr_keyword">import</strong> java.io.IOException;
<a name="16" href="#16">16</a>  <strong class="jxr_keyword">import</strong> java.io.InputStream;
<a name="17" href="#17">17</a>  <strong class="jxr_keyword">import</strong> java.io.InputStreamReader;
<a name="18" href="#18">18</a>  <strong class="jxr_keyword">import</strong> java.net.URL;
<a name="19" href="#19">19</a>  <strong class="jxr_keyword">import</strong> java.rmi.RemoteException;
<a name="20" href="#20">20</a>  <strong class="jxr_keyword">import</strong> java.util.ArrayList;
<a name="21" href="#21">21</a>  <strong class="jxr_keyword">import</strong> java.util.Enumeration;
<a name="22" href="#22">22</a>  <strong class="jxr_keyword">import</strong> java.util.List;
<a name="23" href="#23">23</a>  <strong class="jxr_keyword">import</strong> javax.servlet.ServletConfig;
<a name="24" href="#24">24</a>  <strong class="jxr_keyword">import</strong> javax.servlet.ServletException;
<a name="25" href="#25">25</a>  
<a name="26" href="#26">26</a>  <em class="jxr_javadoccomment">/**</em>
<a name="27" href="#27">27</a>  <em class="jxr_javadoccomment"> *</em>
<a name="28" href="#28">28</a>  <em class="jxr_javadoccomment"> * @author &lt;a href="<a href="mailto:cooper@screaming-penguin.com" target="alexandria_uri">mailto:cooper@screaming-penguin.com</a>"&gt;Robert "kebernet" Cooper&lt;/a&gt;</em>
<a name="29" href="#29">29</a>  <em class="jxr_javadoccomment"> */</em>
<a name="30" href="#30">30</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../com/totsp/gwittir/service/LogServiceServlet.html">LogServiceServlet</a> <strong class="jxr_keyword">extends</strong> RemoteServiceServlet implements <a href="../../../../com/totsp/gwittir/client/log/remote/LogService.html">LogService</a>{
<a name="31" href="#31">31</a>      <strong class="jxr_keyword">private</strong> List&lt;ServerLogService&gt; services;
<a name="32" href="#32">32</a>      
<a name="33" href="#33">33</a>      <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> Creates a new instance of <a href="../../../../com/totsp/gwittir/service/LogServiceServlet.html">LogServiceServlet</a> */</em>
<a name="34" href="#34">34</a>      <strong class="jxr_keyword">public</strong> <a href="../../../../com/totsp/gwittir/service/LogServiceServlet.html">LogServiceServlet</a>() {
<a name="35" href="#35">35</a>      }
<a name="36" href="#36">36</a>      
<a name="37" href="#37">37</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> init(ServletConfig config) <strong class="jxr_keyword">throws</strong> ServletException {
<a name="38" href="#38">38</a>          <strong class="jxr_keyword">super</strong>.init(config);
<a name="39" href="#39">39</a>          <strong class="jxr_keyword">this</strong>.log( <span class="jxr_string">"LogServiceServlet init."</span>);
<a name="40" href="#40">40</a>          Enumeration&lt;URL&gt; enu;
<a name="41" href="#41">41</a>          <strong class="jxr_keyword">try</strong> {
<a name="42" href="#42">42</a>              enu = LogServiceServlet.<strong class="jxr_keyword">class</strong>.getClassLoader().getResources(<span class="jxr_string">"META-INF/services/com.totsp.gwittir.service.ServerLogService"</span>);
<a name="43" href="#43">43</a>              ArrayList&lt;String&gt; providers = <strong class="jxr_keyword">new</strong> ArrayList&lt;String&gt;();
<a name="44" href="#44">44</a>              <strong class="jxr_keyword">while</strong>( enu != <strong class="jxr_keyword">null</strong> &amp;&amp; enu.hasMoreElements() ){
<a name="45" href="#45">45</a>                  providers.addAll( <strong class="jxr_keyword">this</strong>.readProviders( enu.nextElement().openStream() ) );
<a name="46" href="#46">46</a>              }
<a name="47" href="#47">47</a>              ArrayList&lt;ServerLogService&gt; services = <strong class="jxr_keyword">new</strong> ArrayList();
<a name="48" href="#48">48</a>              <strong class="jxr_keyword">for</strong>( String className : providers ){
<a name="49" href="#49">49</a>                  <strong class="jxr_keyword">try</strong>{
<a name="50" href="#50">50</a>                      services.add( (ServerLogService) Class.forName(className).newInstance() );
<a name="51" href="#51">51</a>                  } <strong class="jxr_keyword">catch</strong>(Exception e){
<a name="52" href="#52">52</a>                      <strong class="jxr_keyword">this</strong>.log( <span class="jxr_string">"Exception creating "</span>+ className, e );
<a name="53" href="#53">53</a>                  }
<a name="54" href="#54">54</a>              }
<a name="55" href="#55">55</a>              <strong class="jxr_keyword">this</strong>.services = services;
<a name="56" href="#56">56</a>          } <strong class="jxr_keyword">catch</strong> (IOException ex) {
<a name="57" href="#57">57</a>              <strong class="jxr_keyword">this</strong>.log(<span class="jxr_string">"Unable to read ServerLogService providers"</span>, ex);
<a name="58" href="#58">58</a>          }
<a name="59" href="#59">59</a>          
<a name="60" href="#60">60</a>      }
<a name="61" href="#61">61</a>      
<a name="62" href="#62">62</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> log(<strong class="jxr_keyword">int</strong> level, String logger, String message, String exceptionMessage) {
<a name="63" href="#63">63</a>          <strong class="jxr_keyword">if</strong>( services != <strong class="jxr_keyword">null</strong> &amp;&amp; services.size() &gt; 0 ){
<a name="64" href="#64">64</a>              <strong class="jxr_keyword">for</strong>( ServerLogService service : services ){
<a name="65" href="#65">65</a>                  service.log( level, logger, message, exceptionMessage );
<a name="66" href="#66">66</a>              }
<a name="67" href="#67">67</a>          } <strong class="jxr_keyword">else</strong> {
<a name="68" href="#68">68</a>              <strong class="jxr_keyword">this</strong>.log( message, <strong class="jxr_keyword">new</strong> RemoteException( exceptionMessage ) );
<a name="69" href="#69">69</a>          }
<a name="70" href="#70">70</a>      }
<a name="71" href="#71">71</a>      
<a name="72" href="#72">72</a>      <strong class="jxr_keyword">private</strong> List&lt;String&gt; readProviders(InputStream is) <strong class="jxr_keyword">throws</strong> IOException {
<a name="73" href="#73">73</a>          InputStreamReader reader = <strong class="jxr_keyword">new</strong> InputStreamReader(is);
<a name="74" href="#74">74</a>          BufferedReader br = <strong class="jxr_keyword">new</strong> BufferedReader( reader );
<a name="75" href="#75">75</a>          String line = br.readLine();
<a name="76" href="#76">76</a>          ArrayList&lt;String&gt; providers = <strong class="jxr_keyword">new</strong> ArrayList&lt;String&gt;();
<a name="77" href="#77">77</a>          <strong class="jxr_keyword">while</strong>( line != <strong class="jxr_keyword">null</strong> ){
<a name="78" href="#78">78</a>              <strong class="jxr_keyword">if</strong>( line.indexOf(<span class="jxr_string">"#"</span>) != -1 ){
<a name="79" href="#79">79</a>                  line = line.substring(0, line.indexOf(<span class="jxr_string">"#"</span>) );
<a name="80" href="#80">80</a>              }
<a name="81" href="#81">81</a>              line = line.trim();
<a name="82" href="#82">82</a>              <strong class="jxr_keyword">if</strong>( line.length() &gt; 0 ){
<a name="83" href="#83">83</a>                  providers.add( line );
<a name="84" href="#84">84</a>                  <strong class="jxr_keyword">this</strong>.log( <span class="jxr_string">"Found Log SPI "</span>+ line);
<a name="85" href="#85">85</a>              }
<a name="86" href="#86">86</a>              line = br.readLine();
<a name="87" href="#87">87</a>          }
<a name="88" href="#88">88</a>          br.close();
<a name="89" href="#89">89</a>          <strong class="jxr_keyword">return</strong> providers;
<a name="90" href="#90">90</a>      }
<a name="91" href="#91">91</a>      
<a name="92" href="#92">92</a>  }
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